Although not stated in the game, the final knight is King Arthur (アーサー王, Āsā-ō?) and he has a grander entrance and attack.[1] This particular knight was released as a figure as part of the first Final Fantasy Creatures set with the given name of Arthur. The next-to-last two knights should be Gawain and Lancelot, since it's believed that Gawain wielded an axe and Lancelot a sword, the Arondight.

Pairing it with a Steal As Well Materia will allow for 13 attempts at stealing from the enemy.

Knights of the Round is the only Summon Materia that will not work with Quadra Magic, regardless of whether it is linked to the specific Knights of the Round Materia or to the Master Summon Materia, although there is a cumbersome way around this: if the player equips Magic Counter with Master Summon, and Quadra Magic with another Master Summon, there is a small (less than 1%) chance to counterattack with four Knights of the Round attacks.

Knights of the Round is a series of 13 individual attacks hitting all enemies with damage that ignores target's defensive stats each time at the cost of 250 MP. At its maximum, Knights of Round can do up to 129,987 damage to a single target. It takes one use of Knights of the Round to destroy most enemies. The only exceptions are the Weapons, Emerald and Ruby, Safer∙Sephiroth and chocobos. Knights of the Round's spell power is equal to 5x the base magic damage.

The Knights of the Round appear as the final boss of Final Fantasy XIV: Heavensward in the form of Thordan VII and the Heavens' Ward using the power of Nidhogg's eye to assume the form of King Thordan and his Knights Twelve. The Knights Twelve wear armor and use abilities similar to those seen in the Final Fantasy VII summon. While King Thordan is the main enemy in the encounter, he uses an attack called Knights of the Round to summon the other knights (who then use one of their own moves) throughout the fight and uses Ultimate End as a last ditch attack towards the end.

According to the Final Fantasy XV Scenario Ultimania, the statues were created 2000 years ago to serve as coffins to each hold the soul of a dead king. From these coffins, the kings would await the coming of the "Chosen King." The statues were also intended to serve as the Wall that protects the kingdom of Lucis.[2]

In Kingsglaive: Final Fantasy XV, Nyx Ulric wears the ring and beseeches the kings of old to lend him their powers so that he may defeat Glauca. The kings agree in exchange for his life. The kings aid Nyx by activating the Old Wall, giant statues that come to life when possessed by the spirit of a king, which fight the giant daemons that Niflheim has set loose on Insomnia.

The old kings combine their powers in the afterlife.

In Final Fantasy XV, Noctis travels across the world seeking the royal arms that belonged to his ancestors, each possessing the power of one of the kings. During Noctis's final battle with Ardyn Izunia, the kings witness their fight beneath the Citadel. Noctis sits on the throne and summons the kings, who one by one fuse with Noctis and are absorbed by the ring, which kills him. The spirit of his father Regis delivers the final blow. In the afterlife, the kings join Noctis in destroying Ardyn's corrupted spirit, ending the Starscourge and restoring the light to Eos.

In the official novel version, the Knights of the Round appeared as a powerful Eidolon instead of Alexander. They are thirteen 30-meter tall warriors in red armor summoned by Kurasame, who has become a l'Cie soon after Caetuna died earlier in the story.

These extraordinary knights sat equal to Arthur, serving in the name of justice. Their incessant blows smash all before them. Their violence and power are the greatest of all summons. There is no opposing them.

—CollectaCard

The Knights of the Round appear in the rhythm-action series as the ultimate summon. Only a few characters can naturally the knights, and their signature attack, Ultimate End, deals extreme damage to enemies. Because of the attacks power, failing to get a single Critical trigger in the Feature Drive will fail to summon the knights. Alternatively, equipping the Knights' Magicite ensures that any character can summon them, and that they'll be summoned successfully.

The Knights of the Round return as the ultimate summon, and as before, only a few characters can summon them exclusively. Their signature attack, Ultimate End, deals extreme damage to all monsters present in the music stage.

[view·edit·purge]The Knights of the Round Table are the main characters in the Arthurian legends of Britain. King Arthur was the leader of the knights, wielding the Excalibur. When called, the knights assembled at the Round Table. According to legend, Arthur was betrayed by Mordred, in some accounts held to be his own son. Arthur assembled his knights to a battle to the last man with the traitor, in which Mordred was slain and King Arthur was fatally wounded. Sir Bedivere, the only survivor, took the King to Avalon to rest until he was needed to rule Britain again.

Knights of the Round has the longest summon animation in Final Fantasy VII. The sequence can be skipped with the Vincent Mug glitch.

When asked whether the Knights of the Round in Final Fantasy VII are the Cetra that sealed away Jenova two thousand years ago, Director Yoshinori Kitase answered: "Everyone’s thinking too deeply, reading between the lines too much. That makes it difficult because if you think about it that way, we might have to make it that way. That's definitely not true."[3]

As revealed in Final Fantasy XIV: Heavensward, Three out of Thirteen members are named "King Thordan I", "Flavien de Fortemps", and "Sylvetrel de Dzemael". The names of the other members remain unknown.